I had my young dog castrated last Friday (he is 16 months old). He is very subdued. I had to stop giving him Metacam on advice of the vet as he was sick all over his bed the second night. I have borrowed a crate from a friend so he is safe and cannot jump up on the sofas when I am not around, he loves the crate and I was surprised by that. I let him out during the day while I am around and he just sits looking towards the door where the crate is kept. Some mornings he refuses to come out of the crate and also during the day. He is eating ok and loves his walks around the fields with me on his lead but sometimes when I show him his lead he cowers into the corner of the crate and won't come to me. Should I be worried or is he in pain without the Metacam? He has to continue to wear his medical pet shirt until Monday which I think is a long time I am worried it is rubbing against his nether regions and causing him stress. I know I can ring the vet in the morning but I am so worried about him.